AFCO Racing Coil Spring Spacer Kit
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AFCO Racing Coil Spring Spacer Kits: Precision Tuning for the Track
When it comes to dialing in suspension setup on oval track and stock stub race cars, few names carry more authority than AFCO Racing. Their coil spring spacer kits are a targeted solution for racers who need fine-grained control over ride height and corner weights — without swapping out springs entirely.
What Sets AFCO Racing Coil Spring Spacers Apart
AFCO's adjustable coil spring spacers are engineered with ACME threads for exceptional strength under racing loads. This thread form is a deliberate engineering choice: ACME-profile threads distribute load more evenly than standard threads, reducing the risk of fastener failure during hard competition use.
The flagship adjustable spacer (part #20191) is a prime example of AFCO's race-first design philosophy. It allows a 2" range of height adjustment when fitting 5" or 5-1/2" springs into stock stub cars. A trim sleeve handles the initial fit — you trim it to size and weld it in place — then use the collar to adjust ride height and wedge. The spacer extends from 3-1/8" all the way up to 5-1/4", giving crews real flexibility when adapting spring packages to a given track or class rule.
For crews working in the heat of competition, AFCO also offers rubber coil spring spacers designed for speed. Used with 5" or 5-1/2" O.D. coil springs to increase effective spring rates, the amount of spring rate change will depend on the thickness of the rubber, the location of the rubber, and the type of spring being used. These rubber spacers make fast and easy spring rate changes possible, including adjustments during pit stops — making them great for testing and practice sessions where time is minimal.
Why Racers Trust AFCO for Suspension Tuning
AFCO's passion to be the best is the reason that professional racers have relied on AFCO products for over two decades. Their coil spring spacer kits reflect this commitment: the products have been consistently reviewed as both high-quality and cost-effective, with users impressed by their ability to accurately adjust car height and corner weights — making them particularly well-suited for autocross and oval track use.
When combined with AFCO springs, the lightweight spacer design has helped users cut down 10 lbs per corner — a meaningful advantage in any racing class where minimum weight is a consideration. Users have also affirmed the product's durability despite its affordable price, underscoring that AFCO doesn't ask you to choose between performance and value.
Who Are These Spacers For?
AFCO Racing coil spring spacer kits are primarily aimed at oval track and stock car racers running stock stub front suspensions, though the adjustability and robust steel construction make them useful for any builder working with 5" or 5-1/2" O.D. coil springs. Whether you're chasing better bite off the corner, balancing wedge across a tight track, or simply adapting a shorter spring to an existing setup, AFCO's spacers give you the control to do it right.
Explore the full AFCO Racing product lineup for shocks, springs, and complete suspension systems, or browse all coil spring spacer kits to compare options across brands.